Thanks for the links. I'll read the Sonarworks one tomorrow after work (I've read Arthur's).
I'm glad there is no pressure to master for Feedback Friday. I've read and watched a few things (including Warren's interviews with the likes of Michael Romanowski and the recent Piper Payne one) and it does seems to be a somewhat mysterious art. Like you say I'd rather not adversely affect my mix by playing with something I have no clear understanding of.
I'll probably take the plunge and put it up for next week's FF.